Update to javax.servlet-api:4.0.1

Fixes: gh-5281

Author: rwinch

gradle/dependency-management.gradle

@@ -64,7 +64,7 @@ dependencyManagement {
 		dependency 'javax.mail:mail:1.4.7'
 		dependency 'javax.servlet.jsp.jstl:javax.servlet.jsp.jstl-api:1.2.1'
 		dependency 'javax.servlet.jsp:javax.servlet.jsp-api:2.3.2-b02'
-		dependency 'javax.servlet:javax.servlet-api:4.0.0'
+		dependency 'javax.servlet:javax.servlet-api:4.0.1'
 		dependency 'javax.validation:validation-api:2.0.1.Final'
 		dependency 'javax.xml.bind:jaxb-api:2.3.0'
 		dependency 'junit:junit:4.12'